Home / 83,200.20-124,800.30-30,602.85

Finding the Fourth Proportional to 83,200.20, 124,800.30 and 30,602.85

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Solution

The fourth proportional to 83,200.20, 124,800.30 and 30,602.85 is: 45,904.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,200.20 : 124,800.30 = 30,602.85 : x
  2. Step 2: Convert to fraction form
    83,200.20/124,800.30 = 30,602.85/x
  3. Step 3: Cross multiply
    83,200.20x = 124,800.30 × 30,602.85
  4. Step 4: Simplify right side
    83,200.20x = 3,819,244,860.86
  5. Step 5: Solve for x
    x = 3,819,244,860.86/83,200.20
  6. Step 6: Final answer
    x = 45,904.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.